Improvement in sash-fasteners



A. LONG.

Sash-Fastener. No. 164,571. Patentedlunel5,1875.

HC GRAPHIC C0-PHOTDrUT".398=41 PARK PMGEJLY.

UNITED STATEs PATENT OEEIcE.

AARON LONG, OF ANN ARBOR, MIGHIGAN, ASSIGNOE OF ONE-HALF 111s RIGHT TOGEORGE W. BAILEY, OF sAME PLAGE.

IMPROVEMENT IN SASH-FASTENERS.

Specification forming part of Letters Patent No. 164.571, dated June 15,1875; application filed January 22, 1875.

To all whom it may concern:

Be it known that I, AARON LONG, of Ann Arbor, in the county of\Vashtenaw and State of Michigan, have invented an Improvement inWindow-Locks, of which the following is a specification The object of myinvention is to provide a sash-lock for the upper and lower sashes ofwindows, which will automatically lock them at all points, and whichwill at all times that is to say, when both sashes are fully raised orfully lowered-enable the operator to unlock either or both. Theinvention consists in a pair of bolts, each having a head bent outwardat right angles, arranged in a shell or case let into the window-casing,each actuated by a spring, and arranged to engage by means of its benthead with stop-notches in a vertical groove in the side of thesashstile, as more fully hereinafter set forth.

Figure 1 is a sectional elevation of the side of a window-frame fittedwith my improved lock, the lower sash being raised. Fig. 2 is anelevation of the bolts of the lock, whose covering-plate has beenremoved, as also both sashes and their parting-strips. Fig. 3 is ahorizontal section through one of the bolts. Fig. 4: is a perspectiveview of the grooved and notched stile of a sash.

In the drawing, A represents a window frame or casing; B, the uppersash; O, the lower one; a, the parting-strip between the sash, and b thesash-stop. D is the metallic case let into the casing of the window atmidheight, containing two horizontal bolts, E, one at the top, and theother at the bottom, to engage with the upper and lower sashes,respectively, each having a head, 0, bent outwardly at a right angle,and playing through a slot, d, in the case D. Each is shot toward thesash by a spiral spring, 0. The inner end of each bolt has an offset, inwhich is tapped a hole to receive a screw threaded knob, f, whose shankplays through a slot, g, in the casing-plate. The edge of eachsash-stile has a groove, h, plowed in it its full length for the head 0of its bolt to rest in, and at the various heights at which it isdesired to lock the sash, a notch, 11, is cut in the outer edge of saidgroove, into which the spring will force the head of the bolt as itcomes opposite to it.

The bolt-knobs not being on the sashes, but on the window-casing, theoperator can unlockthe sashes at all times, without first being obligedto move either one to get access to the other.

What I claim as my iuvention,-and desire to secure by Letters Patent, is

In combination with the case D, mortised within the window-casing, andprovided with the bolts E E, each having a head, 0, bent outward atright angles, and playing through the slot d, the springs e e, and knobsf, the window-sash stiles, having vertical groove C, in which the benthead of the bolt moves, and notches 2', all substantially as describedand shown, for the purpose set forth.

AARON LONG. Witnesses:

H. F. EEER'rs, H. S. SPRAGUE.

